Home / 90,473,994.78-124,897,477.95-55,696,495.74

Finding the Fourth Proportional to 90,473,994.78, 124,897,477.95 and 55,696,495.74

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Solution

The fourth proportional to 90,473,994.78, 124,897,477.95 and 55,696,495.74 is: 76,887,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,473,994.78 : 124,897,477.95 = 55,696,495.74 : x
  2. Step 2: Convert to fraction form
    90,473,994.78/124,897,477.95 = 55,696,495.74/x
  3. Step 3: Cross multiply
    90,473,994.78x = 124,897,477.95 × 55,696,495.74
  4. Step 4: Simplify right side
    90,473,994.78x = 6,956,351,848,578,919
  5. Step 5: Solve for x
    x = 6,956,351,848,578,919/90,473,994.78
  6. Step 6: Final answer
    x = 76,887,860.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.